1、标称截面 结构 外径 20 计算计算重量交货长度 连续铝钢 根数直径 mm 直流电阻 拉断力 kgkm 不小于 载流量mm2 mm 不大于 N A铝 钢 km m 15025262.7072.10 17.1 0.1939 54110 601.O 2000 47O15035302.5072.50 17.5 O.1962 65020 676.2 2000 50018510183.6013.60 18 O.1572 40880 584.O 2000 49718525243.1572.10 18.9 O.1542 59420 706.1 2000 52518530262.9872.32 18.88 O
2、.1592 64320 732.6 2000 52518545302.8072.80 19.6 O.1564 80190 848.2 2000 52221010183.8013.80 19.OO O.1411 45140 650.7 2000 52321025243.3372.22 19.98 0.138 6599O 789.1 2000 56021035263.2272.50 20.38 O.1363 74250 853.9 2000 59021050302.9872.98 20.86 O.1381 90830 960.8 2000 60024030243.6072.40 21.6 O.1181 75620 922.2 2000 6lO24040263.4272.66 21.66 O.1209 83370 964.3 2000 61024055303.2073.20 22.4 O.1198 102100 1108 2000 64030015423.OO71.67 23.01 O.09724 68060 939.8 2000 65030020452.9371.95 23.43 O.09520 75680 1002 2000 655
